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Preparation method for porous micro-fine denier polyester POY (polyester pre-oriented yarn) and FDY (fully drawn yarn) interlaced composite yarn

A technology of fine denier and composite yarn, applied in the field of chemical fiber, can solve the problems of poor product quality, dyeing performance and effect stability, high production cost, complicated processing procedures, etc., and achieves good product performance and effect, low production cost and simple procedure. Effect

Inactive Publication Date: 2012-05-09
苏州巨源纤维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional two-step process is long, the processing procedure is complicated, the stability of product quality, dyeing performance and effect is relatively poor, the production cost is high, and the efficiency is low.

Method used

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  • Preparation method for porous micro-fine denier polyester POY (polyester pre-oriented yarn) and FDY (fully drawn yarn) interlaced composite yarn
  • Preparation method for porous micro-fine denier polyester POY (polyester pre-oriented yarn) and FDY (fully drawn yarn) interlaced composite yarn
  • Preparation method for porous micro-fine denier polyester POY (polyester pre-oriented yarn) and FDY (fully drawn yarn) interlaced composite yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This example is used to prepare 110dtex / 120f porous micro-denier polyester POY, FDY interlaced composite yarn, the preparation process is as follows:

[0022] 1. Process parameters (refer to Table 1):

[0023] Table 1: Process parameters of porous micro-denier polyester POY / FDY interlaced composite yarn

[0024]

[0025]

[0026] 2. Preparation method:

[0027] The preparation method of 110dtex / 120f porous micro-denier polyester POY and FDY interlaced composite yarn is as follows:

[0028] a. Prepare polyester chip material with an intrinsic viscosity of 0.648 (dL / g), then pre-crystallize it at 170°C for about 30 minutes, and send it to a drying tower for drying for 6-8 hours at a drying temperature of 168°C to ensure The moisture content of slices is less than 30ppm;

[0029] b. The dried polyester chip enters the screw, and at the same time, 2% polyalkylmethacrylate additive is added by mass percentage, heated and melted to form a polyester melt;

[0030] c....

Embodiment 2

[0039] The preparation method of porous micro-denier polyester POY, FDY interlaced composite yarn is as follows:

[0040] a. Prepare polyester chip material with an intrinsic viscosity of 0.648 (dL / g), then pre-crystallize it at 170°C for about 30 minutes, and send it to a drying tower for drying for 6-8 hours at a drying temperature of 168°C to ensure The moisture content of slices is less than 30ppm;

[0041] b. The dried polyester chip enters the screw, and at the same time, 1% polyalkylmethacrylate additive is added by mass percentage, heated and melted to form a polyester melt;

[0042] c. Then the polyester melt is mixed, metered and filtered and enters the spinning box, and the flow is metered by two metering pumps respectively into the spinning assembly, and then the polyester melt is pulled out by two spinnerets at the same time to form Two bundles of filaments are cooled and solidified;

[0043] d. After oiling, one bundle is pre-networked, stretched and heat-set t...

Embodiment 3

[0046] The preparation method of porous micro-denier polyester POY, FDY interlaced composite yarn is as follows:

[0047] a. Prepare polyester chip material with an intrinsic viscosity of 0.648 (dL / g), then pre-crystallize it at 170°C for about 30 minutes, and send it to a drying tower for drying for 6-8 hours at a drying temperature of 168°C to ensure The moisture content of slices is less than 30ppm;

[0048] b. The dried polyester chip enters the screw, and at the same time, 4% polyalkylmethacrylate additive is added by mass percentage, heated and melted to form a polyester melt;

[0049] c. Then the polyester melt is mixed, metered and filtered and enters the spinning box, and the flow is metered by two metering pumps respectively into the spinning assembly, and then the polyester melt is pulled out by two spinnerets at the same time to form Two bundles of filaments are cooled and solidified;

[0050] d. After oiling, one bundle is pre-networked, stretched and heat-set t...

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Abstract

The invention relates to a preparation method for porous micro-fine denier polyester POY (polyester pre-oriented yarn) and FDY (fully drawn yarn) interlaced composite yarn, which is capable of producing POYs and FDYs and directly compositing the same together. A winding device is provided in the preparation method, and the speed of the winding device ranges from 3900m / min to 4400m / min. The preparation method includes the steps of a drying polyester chips, b enabling the dried polyester chips to enter a screw for heating and fusing so that a polyester melt is formed, c using two metering pumps to meter flow of the polyester melt, and drawing the polyester melt out simultaneously by two spinneret plates to form two yarns prior to being cooled and solidified for forming, d after the two yarns are oiled, enabling one yarn to be pre-interlaced and drawn prior to heat setting, so that the FDY yarn is obtained, and enabling the other yarn to be drafted to two yarn guide rollers so that the POY yarn is obtained, and e enabling the FDY yarn and the POY yarn to be inputted to nozzles simultaneously for interlaced composition prior to being rolled and formed by the winding device. The preparation method has the advantages of simple process, low production cost, fine product performance effect, high quality and the like.

Description

technical field [0001] The invention relates to a preparation method of porous micro-denier polyester POY and FDY interlaced composite yarn, belonging to the technical field of chemical fibers. Background technique [0002] Porous micro-denier polyester POY and FDY composite yarns belong to the combination of POY yarns (PRE-ORIENTED YARN, pre-oriented yarns) and FDY yarns (FULL DRAWN YARN, fully drawn yarns) with different shrinkage properties to produce shrinkage and loops. , a super-imitation natural fiber formed by intertwined looped yarns. The composite yarn has a fine structure formed by special fiber groups, a fine space between fibers, a three-dimensional spatial shape, a multi-layer structure and an appearance similar to natural fibers. Compared with ordinary fibers, it has a softer touch and better resilience, and can overcome the shortcomings of natural fibers that are easy to wrinkle and ordinary synthetic fibers are airtight, and has significantly improved cover...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G1/18D01F1/02
Inventor 张阅明管新海李苏刘海军陈月荣盛建明张军袁莉
Owner 苏州巨源纤维科技有限公司
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